Average
#5731 of 9,533 schools in CA
Excelsior Middle
Middle School · Byron Union Elementary
14301 Byron Hwy., Byron, CA 94514
Enrollment
423
Student-Teacher
19.2:1
Score
5.9
Grades
6th – 8th
Enrollment
423
Student-Teacher
19.2:1
Score
5.9
Grades
6th – 8th
Updated
2022-23
Updated 2022-23
How this school compares
California middle schools
#833 of 1,349
In district
#3 of 3
Byron Union Elementary
School environment
7.7 / 10
Very strong
About Excelsior Middle
Excelsior Middle in Byron, California is a regular public middle school serving students from sixth to eighth grade. With an enrollment of 423 students and a student-teacher ratio of 19.2:1, the school has 22 full-time equivalent teachers dedicated to providing quality education. Located on Byron Highway in Contra Costa County, Excelsior Middle is situated in a rural area near the town of Byron.
The academic performance at Excelsior Middle shows that 39% of students are proficient or above in English Language Arts and Reading, while 32% meet proficiency standards in Math. The school’s MySchoolScout rating stands at 5.2 out of 10, placing it in the 47th percentile among California schools with a state ranking of #5056 out of 9,566. Excelsior Middle focuses on student development and offers opportunities for academic growth within its supportive rural setting.
The school’s community is engaged and close-knit, providing a nurturing environment for middle school students to thrive.
What Parents Should Know
Located in a rural area, Excelsior Middle may involve longer commutes for some families. Rural schools often serve as community anchors and may have smaller class sizes, but parents should consider transportation logistics, after-school program availability, and access to specialized services.
Score Breakdown
Full Profile · 3/3 metricsView breakdown
View breakdown
View breakdown
Excelsior Middle — Students at Excelsior Middle score 36% proficient, which is below what's typical for similar communities (expected: 57%).
Equity & Diversity
Shown separately, not included in overall scoreFree/Reduced Lunch
32.2%
Students qualifying for federal meal assistance
Test Scores CA CAASPP (2023-24)
Based on 12 test records from CA state assessments. About our data
Proficiency Trend
↓ DecliningAverage proficiency (% at or above grade level) across Math & ELA over time.
* COVID-affected year — test participation was uneven nationwide. This data is weighted at 50% in the Growth score calculation.
Source: EdFacts (NCES) and state assessment data. Growth score: 5.3/10.
How Excelsior Middle Compares
See how Excelsior Middle performs across key quality dimensions compared to state benchmarks.
Funding & Resources
Performance Trends
Math proficiency has declined from 40% (2019) to 31.54% (2024). Reading/ELA proficiency has declined from 48% (2019) to 40.87% (2024).
Location
14301 Byron Hwy., Byron, CA 94514
Nearby Alternatives
Families considering Excelsior Middle may also want to explore other middle schools in the area. Edna Hill Middle (rated 6.0/10, 4.6 miles away, in nearby Brentwood), with a very similar rating. Additionally, William B. Bristow Middle (rated 4.8/10, 5.8 miles away, in nearby Brentwood), a more accessible option. For more schools in Byron, see our Byron schools guide .
Nearby Schools
20 within 6.4 mi| School | Distance | Rating |
|---|---|---|
| Timber Point Elementary Discovery Bay | 2.4 mi | 7.2 |
| Byron Institute for Independent Study Discovery Bay | 2.4 mi | — |
| ALL GOD'S CHILDREN CHRISTIAN SCHOOL Discovery Bay | 2.7 mi | 4.6 |
| All God's Children Christian School Discovery Bay | 2.7 mi | — |
| Loe Hart School Discovery Bay | 3.1 mi | — |
| Discovery Bay Elementary Discovery Bay | 2.8 mi | 6.3 |
| La Paloma High (Continuation) Brentwood | 3.7 mi | 6.0 |
| Old River Elementary Knightsen | 4.1 mi | 7.3 |
| Garin Elementary Brentwood | 4.4 mi | 5.3 |
| Edna Hill Middle Brentwood | 4.6 mi | 6.0 |
| Celebration Center Brentwood | 4.8 mi | — |
| Liberty High Brentwood | 5.0 mi | 6.3 |
| LOVE FOR LEARNING Brentwood | 5.0 mi | — |
| Independence High Brentwood | 5.1 mi | 7.4 |
| Brentwood Elementary Brentwood | 5.1 mi | 5.6 |
| Mary Casey Black Elementary Brentwood | 5.5 mi | 5.2 |
| SENECA CENTER'S UPRISING ACADEMY Brentwood | 5.4 mi | — |
| Knightsen Elementary Knightsen | 6.4 mi | 6.6 |
| William B. Bristow Middle Brentwood | 5.8 mi | 4.8 |
| Marsh Creek Elementary Brentwood | 6.4 mi | 4.6 |
Neighborhood Census ACS (2019-2023)
Census data for ZIP 94514 (ACS 2019-2023 5-Year Estimates) · Data sources
Median Income
$97,946
Median Home Value
$852,900
Median Rent
$2,496/mo
Population
2,044
College Educated
18.4%
Homeownership
63.3%
Poverty Rate
14.3%
Median Age
43.6
Community Profile
The community surrounding Excelsior Middle has a median household income of $97,946. It is a community where 18% of adults hold a bachelor's degree or higher. The median home value in the area is $852,900, with a median rent of $2,496/month. The area has a poverty rate of 14.3%. Source: U.S. Census ACS 2022 5-Year Estimates.
Similar Schools
Schools in the same state with comparable level, size, and ratings
| School | Rating |
|---|---|
| Alliance College-Ready Middle Academy 4 Los Angeles, CA | 5.9 |
| Alliance Virgil Roberts Leadership Academy Los Angeles, CA | 5.9 |
| Charles Maclay Middle Pacoima, CA | 5.9 |
| Fort Bragg Middle Fort Bragg, CA | 5.9 |
| James Monroe Middle Ridgecrest, CA | 5.9 |
| Los Cerros Middle Danville, CA | 5.9 |
Frequently Asked Questions
Common questions about Excelsior Middle
What grades does Excelsior Middle serve?
Excelsior Middle serves students in grades 6th through 8th.
How many students attend Excelsior Middle?
Excelsior Middle has an enrollment of approximately 423 students.
What is the student-teacher ratio at Excelsior Middle?
The student-teacher ratio at Excelsior Middle is 19.2:1. A lower ratio generally means more individual attention per student. The national average is approximately 16:1 for public schools.
How does Excelsior Middle rank in CA?
Excelsior Middle is ranked #5731 out of 9,533 schools in CA.
What is Excelsior Middle's MySchoolScout rating?
Excelsior Middle has a composite rating of 5.9 out of 10 on MySchoolScout. This score combines academic performance, student growth, and school environment into a single score. Equity data is shown separately for context.
What are the test scores at Excelsior Middle?
Based on the most recent state assessment data, Excelsior Middle has 31.9% math proficiency and 39.3% reading/ELA proficiency.
Is Excelsior Middle a charter school?
No, Excelsior Middle is not a charter school. It is a traditional public school operated by the local school district.
Is Excelsior Middle a Title I school?
No, Excelsior Middle is not currently a Title I school.
What does the Free & Reduced Lunch percentage mean for Excelsior Middle?
32.2% of students at Excelsior Middle qualify for free or reduced-price lunch. This is a commonly used indicator of economic need and provides important context when interpreting test scores.
Explore More Schools
Neighborhood Context
- County Safety
- Low (243/100K)
FBI UCR 2024. County-level only. Data >1 year old.
Quick Facts NCES CCD (SY 2022-23)
- Grades
- 6th – 8th
- Enrollment
- 423
- Student-Teacher Ratio
- 19.2:1
- Teachers (FTE)
- 22
- Free/Reduced Lunch
- 32.2%
- Type
- regular
- Setting
- Fringe Rural
- County
- Contra Costa County
- Phone
- (925) 809-7530
- Data Year
- 2023–2024
Resources & Links
District
Byron Union Elementary- District Enrollment
- 1,240
- Schools in District
- 4
- Per-Pupil Spending
- $15,770
- District Rank
- #3 of 3
Other Schools in This District
How We Rate Schools
Every school receives a composite score from 1 to 10 based on four pillars: Academic Performance (50%), Student Growth (20%), Equity (15%), and Learning Environment (15%). Scores are built from publicly available data including standardized test results, enrollment figures, and school climate indicators.
Read our full methodologyRelated reading
- Best Elementary Schools in America: 2026 Rankingsbest schools
- Best Public Schools in California 2026: Top-Ranked Elementary, Middle & High Schoolsbest schools
- Best School Districts to Move To in 2026: A Data-Driven Guidebest schools
- Best Schools in Los Angeles, CA — 2026 Rankingsbest schools
- Best Schools in San Diego, CA — 2026 Rankingsbest schools
Get school insights in your inbox
New rankings, best-schools lists, and parent guides — delivered free. No spam, unsubscribe anytime.
We respect your privacy. Unsubscribe at any time.